VDX6740 EVPN VXLAN incorrect mac-ip

stasonuu — Thu, 02 Sep 2021 22:15:25 GMT

Hello! I have a problem with advertise mac-ip route type via EVPN BGP. Usually mac-ip field has 2 parts: VNI + mac address, but VDX6740 advertise only mac address.

show bgp evpn neighbors 10.32.0.6 advertised-routes detail type mac

       There are 2 routes advertised to neighbor 10.32.0.6
Status A:AGGREGATE B:BEST b:NOT-INSTALLED-BEST E:EBGP I:IBGP L:LOCAL
1       Prefix: MAC:[0][4c5e.0c66.e450],  Status: BL,  Age: 5h11m6s
         NEXT_HOP: 10.32.0.21, Learned from Peer: Local Router
          LOCAL_PREF: none,  MED: 0,  ORIGIN: incomplete,  Weight: 0
         AS_PATH: 65011
            Extended Community: ExtCom:03:0c:00:00:00:00:00:08 RT 65011:271435492 RT 65011:3000036
            Extended Community: ExtCom: Tunnel Encapsulation (Type Vxlan)
            Adj_RIB_out count: 1,  Admin distance 0
            L2_vni: 3000036
            ESI : 00.000000000000000000
            RD: 10.32.0.20:32804

Attention to this: Prefix: MAC:[0][4c5e.0c66.e450]

But when I running command show bgp evpn l2route type mac detail I see that VDX has both attributes VNI and mac address:

12      Prefix: MAC:[3000036][4c5e.0c66.e450],  Status: BL,  Age: 5h15m5s
         NEXT_HOP: 0.0.0.0, Learned from Peer: Local Router
          LOCAL_PREF: 100,  MED: 0,  ORIGIN: incomplete,  Weight: 0
         AS_PATH:
            Extended Community: ExtCom:03:0c:00:00:00:00:00:08
            Extended Community: ExtCom: Tunnel Encapsulation (Type Vxlan)
            L2_vni: 3000036
            ESI : 00.000000000000000000
            RD: 10.32.0.20:1

How can I change this behavior and advertise both attributes?

Current configuration:

show version

Network Operating System Software
Network Operating System Version: 7.4.1
Copyright (c) 2017-2018 Extreme Networks, Inc.
Firmware name:      7.4.1
Build Time:         15:47:36 May 26, 2020
Install Time:       13:56:03 Aug 31, 2021
Kernel:             2.6.34.6

BootProm:           1.0.1
Control Processor:  e500mc with 4096 MB of memory

Slot    Name    Primary/Secondary Versions                         Status
---------------------------------------------------------------------------
SW/0    NOS     7.4.1                                              ACTIVE*
                7.4.1
SW/1    NOS     7.4.1                                              STANDBY
                7.4.1




show running-config rbridge-id 1 router bgp
rbridge-id 1
 router bgp
  local-as 65011
  capability as4-enable
  fast-external-fallover
  neighbor overlay-cvx peer-group
  neighbor overlay-cvx remote-as 65002
  neighbor overlay-cvx update-source loopback 1
  neighbor overlay-cvx ebgp-multihop 32
  neighbor spine-group peer-group
  neighbor spine-group remote-as 65001
  neighbor spine-group description connected to 4 spine-groups
  neighbor spine-group capability as4 enable
  neighbor 10.32.0.6 peer-group overlay-cvx
  neighbor 10.32.32.54 peer-group spine-group
  address-family ipv4 unicast

   network 10.32.0.19/32
   network 10.32.0.21/32
   maximum-paths 8
   graceful-restart
  !
  address-family ipv6 unicast

  !
  address-family l2vpn evpn
   graceful-restart
   neighbor overlay-cvx activate
   neighbor overlay-cvx allowas-in 1
   neighbor overlay-cvx next-hop-unchanged
   neighbor overlay-cvx send-community both
  !
 !
!



show running-config overlay-gateway 833-2
overlay-gateway 833-2
 type layer2-extension
 ip interface Loopback 2
 attach rbridge-id add 1-2
 map vlan 36 vni 3000036
 activate
!



show running-config rbridge-id 1 evpn-instance vxlan-36
rbridge-id 1
 evpn-instance vxlan-36
  route-target both auto ignore-as
  rd auto
  vni add 3000036
 !
!

Re: VDX6740 EVPN VXLAN incorrect mac-ip

stasonuu — Thu, 16 Sep 2021 03:02:15 GMT

Help me please

Re: VDX6740 EVPN VXLAN incorrect mac-ip

SamPirok — Fri, 01 Oct 2021 20:24:52 GMT

Hi @stasonuu, I’m sorry for the long wait here. I haven’t been able to find any answers for you, would you be able to open a support case for this issue so we can get you in touch with an engineer to work on this with you? It would also help if we could get a packet capture showing some of the BGP advertisement packets as well; if you could attach that to your case, that would be appreciated.

Re: VDX6740 EVPN VXLAN incorrect mac-ip

stasonuu — Fri, 01 Oct 2021 21:26:45 GMT

@Sam Pirok Hi! I’am so sorry, but I don’t have support contract for our switches. And I can't open the case. We have not trivial objective - integration Arista fabric with Extreme VDX fabric.
I think that the first part of problem - we can't set route-target on evpn instance and the secand part problem - absense VNI in Segment tag ID in Route Type-2. Like this:

If engineers of Extreme Networks can help me I will so happy.

topic Re: VDX6740 EVPN VXLAN incorrect mac-ip in Data Center (VDX)

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